(19)
(11) EP 0 326 886 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.09.1989 Bulletin 1989/36

(43) Date of publication A2:
09.08.1989 Bulletin 1989/32

(21) Application number: 89101078.7

(22) Date of filing: 23.01.1989
(51) International Patent Classification (IPC)4: F22B 37/00, F28F 11/00, B21D 39/16
(84) Designated Contracting States:
BE ES FR SE

(30) Priority: 01.02.1988 US 151115

(71) Applicant: COMBUSTION ENGINEERING, INC.
Windsor, Connecticut 06095 (US)

(72) Inventors:
  • Kiesche, Eric Alan
    Ringgold Georgia 30736 (US)
  • Crabtree, Samuel Blaine
    Chattanooga Tennessee 37405 (US)

(74) Representative: Rupprecht, Klaus, Dipl.-Ing. et al
c/o ABB Patent GmbH, Postfach 10 03 51
68128 Mannheim
68128 Mannheim (DE)


(56) References cited: : 
   
       


    (54) Control system for a rotation station for remotely installing a mechanical tube plug


    (57) A controller for an apparatus for installing a mechanical tube plug includes a controller (60) having a controller console (64) remote from the tube instal­lation site and a solenoid assembly (62) located proxi­mate to that site. The console includes switches and indicators for providing a rotation control signal to the apparatus. The solenoid assembly (62) includes a circuit for receiving a torque indication signal from the apparatus and an alarm circuit for setting the torque at a predetermined upper limit in response to a signal input at said controller console (64). The circuit operates to terminate rotation control and disable the apparatus when said limit is reached. Other features of the controller are also disclosed.







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